The online retailer is the father of Black Friday in the UK. Its offers changing daily deals and runs all week; they finish on November 30. Today, until 13.40pm, you can nab an iPhone 5 32GB for £329 — 23% off. There are also One Direction action figures and headphones with up to 70% off the asking price.

Owned by American retail giant Walmart, ASDA joins Amazon as one of the main companies behind Black Friday's introduction to the UK. Its discounts start at 8am on Friday and this year will it will also host a second sale on Saturday. As of Thursday morning, one offer is a 40inch flat-screen TV for £139.

John Lewis
The department store is home to more than penguins. Right now, its Black Friday page only hints at what's to come: "For one day only, we're bringing you hundreds of offers across electricals," it says. The stores open at 8am on Friday and its Oxford Street branch will be trading until 10pm.